Implementing golang channel

chan.go

package channel

import (
	"sync"
	"time"
)

type Channel struct {
	lock  sync.Mutex
	value interface{}
}

func (c *Channel) Read() (res interface{}) {
	for {
		c.lock.Lock()
		if c.value != nil {
			res = c.value
			c.value = nil
			c.lock.Unlock()
			return
		}

		c.lock.Unlock()
		time.Sleep(time.Nanosecond)
	}
}

func (c *Channel) Write(x interface{}) {
	for {
		c.lock.Lock()
		if c.value == nil {
			c.value = x
			c.lock.Unlock()
			return
		}

		c.lock.Unlock()
		time.Sleep(time.Nanosecond)
	}
}